Island



(NoMo'del.)

o. H. PERKINS.

DIE NoLLsroN MAKING KoNsEsHoB BLANK BARS.

No. 449,052.r Patentealvm. 24, 1,891,.-

UNrTED STATES PATENT OFFICE.

CHARLES HENRY PERKINS, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THERHODE ISLAND IIORSE SHOE COMPANY, OE SAME PLACE.

DIE-ROLL FOR MAKING HORSESHOE-BLANK BARS.l

SPECIFICATION forming part Of Letters Patent No. 449,052, dated March24, 1891.

Application filed September 24, 1890. Serial No. 365,939. (No model.)

To all whom t may concern:

Be it known that I, CHARLES HENRY PER- KINS, of the city and countyofProvidence,in the State of Rhode Island, have invented certain new anduseful Improvements in Die- Rolls for Making Horseshoe-Blank Bars; and

I do hereby declare that the following speciication, taken inconnectionwith the drawings furnished and forming a party of the 1osame, is a clear, true, and complete descripl tion of my invention. I

In an application for Letters Patent, Serial No. 361,963, led by meAugust let, 1890, I have disclosed a certain method or process ofmanufacturing` blanks and blank-bars, and among other forms of mechanismI disclosed therein, for the purposes of that specification, thedie-rolls which are made the special subject of my present application.Said blanks 2o and blank-bars have `been devised by me with specialreference to their use in the manufacture of what are 'known astoe-weighted shoes, and die-rolls embodying my present iuvention areemployed for producing blanks 2 5 and blank-bars suited to themanufacture. of two varieties of horseshoes ot' that class. My noveldie-rolls convert a plain straightedged bar of metal into blank-barswhich are readily divisible on diagonal lines in such a manner 3o thateach blank will have a Wide toe portion and two narrow ends or heelportions, and these blanks lie in -two parallel series in the bar. Thesebars are therefore double blankbars 5 but they are radically unlike such3 5 prior double blank-bars as have been devised by ine-as, forinstance, those disclosed in my Letters Patent Nos. 174,924 and192,127-and consequently my present die-rolls are also radically unlikeany prior rolls for producing 4o double blank-bars.

The prime feature of noveltyin a die-roll embodying my present inventionconsists in providing the working-face of the roll with two series ofcreasers so disposed in pairs in each series that each pair will operatein forming the nail creases or scores in each blank; but these pairs ineither series alternate in position with the pairs of creasers in theother-series as distinguished fromhaving each creaser 5o in one seriesexactly opposite another creaser in the other series, as in all priordie-rolls for producing double horseshoe-blank.bars. By this novelarrangement of the creasers the blanks are properly scored, althoughthey so lie in the bar that the toe portion of any one blank lieslaterally opposite two heel portions of two other blanks, asdistinguished from prior horseshoe-blank bars of the double form, in allof which each two blanks lie side by side. 6o

A second and equally important feature of novelty in my present rollsconsists of a peculiar grooVing-tongue for forming a zigzag groovebetween the lines or series of blanks.

This grooving-tongue has an edge which is i truly circular in itsperipheral outline; but its edge inclines in straight lines to and fro,each straight line being equal to one-half of the length of anyparticular blank required for forming agiven size of shoe. This 7otongue may be uniform in its cross-section,

as is desirable in making certain varieties of blanks; but for producinga preferred form of blank used in making fancy shoes the tongue isvaried in its form, so as to produce a wide flat bevel at the toeportion of ablank and narrow steep bevels at its two ends or heelportions.

A further novelfeature in my die-roll consists in providing it withspurs for marking 8o the parting-lines between the abutting heelportions of each two blanks, said spurs at one edge of the rollalternating in position with spurs at the opposite edge, asdistinguished from having such spurs in pairs exactly oppo- 8 5 siteeach other, as heretofore.

All of these features are employed by me in one die-roll; but I alsoemploy them separately, according to the particular form of myblank-bars which may be desired. 9o

To more particularly describe my invention,

I will refer to the accompanying drawings, wherein- Figure 1 in frontview illustrates rolls embodying all of the features of my presentinvention. Fig. 2 illustrates the working-face of the die-roll in planeprojection.

For securing the best results I employ two co-operative rolls, thedie-roll A and the roll B. The roll 13 is either grooved or it is in roosubstance (as is common with such rolls) provided with a groove by meansof collars, ad-

justable or otherwise, said groove being of proper width to correspondwith the width of blank-bars desired, and said two rolls are gearedtogether. The die-roll A possesses several novel features, and, inasmuchas it may be employed with fairly good results with a reciprocatinggrooved bed ortable, my invention is not to be restricted to thecombination of said die-roll with a co-operating roll.

My die-roll is novel, in that it has a zigzag grooving-tongue c, whichinclines to and fro with respect to the edges of the working-face of theroll. In its best form said tongue has a varied sectional contour, beingbroadly beveled, as at a2, and having a narrow bevel, as at a', and eachtwo of its peripheral inclined portionsequals in length the length ofthe horseshoe-blank desired. The broad bevels are located at the innerside of each two angles or lateral inclinations, thus affording a broadbevel on the blank at the inner side of its toe portion. The narrowbevels are located at the outer side of each two angles for affordingnarrow bevels on the heel portions or ends of each blank. In some casesthe grooving-tongue is made quite thin and uniform in its sectionalcontour, this variation constituting no departure from certain portionsof my invention. This grooving-tongue also performs the function of sofar dividing the blanks of one series in a bar from those of the otherthat a zigzag slitting-machine can readily cut through the thin metal atthe bottom of the groove. Such a machinehas been devised by me and is tobe made the subject of a separate application for Letters Patent. (SeeSerial No. 367,171.) Even if this die-roll should have on itsworking-face only a zigzag grooving-tongue, the roll would possesspractical value for the production of tapered blanks to be creased byhand or by separate tools, as in a drop-press.

My said die-roll has also two series of nailscores Z) h', which arearranged in a novel manner in pairs, which in one series alternate inposition with the pairs of ereasers in the other series, asdistinguished from having, as always heretofore, two series with thecreasers of each directly alongside of those in the other series. Thispeculiar arrangement of the creasers in my roll causes them to properlylocate nail-scores or creases in a bar wherein the blanks are taperedboth ways from the center to the ends and lie in the bar with two heelportions or ends of two blanks opposite the central or toe portion of alaterally-adjacent blank. In asmuch as the variably-beveled zigzaggrooving-tongue is of special value in forming blanks for high gradeshoes, and as a grooving-tongue need not be employed at all fordeveloping blanks for plain toe-weighted shoes, it will be obvious thata roll having only the peculiar creasers described will possesspractical value.

My said die-roll is further novel in connection with the arrangement ofthe heel-marking spurs, which are in two series, c and c',

and instead of having, as heretofore, the spurs of one series exactlyopposite those in the other series they alternate in position with eachother, so as to define the lengths of blanks in two lines in a barwherein, opposite each toe portion, there are two heel portions of twolaterally-ad j acent blanks. These heel-marking spurs or studs may alonebe relied upon for forming the simplest form of blank-bar containingmetal so rolled and proportioned that by means of suitable cutting orshearing tools the bar may be readily converted into separate plaintapered blanks, the heel-marks in the bar as made by said studs or spursserving as reliable gage-marks during the angular cutting operation. Forobtaining the most satisfactory results, however, in the production ofblank-bars containingplain tapered blanks a roll having thenail-creasers and the heel-studs should be employed. It will, however,be observed that inasmuch as the location of the nail-scores in a blankbar will always be uniform, each nail-creaser, when provided with theusual nail-head prints d, will aiord depressions in the blank which canserve a good purpose for properly gaging each blank in a bar withrelation to such blankcutting mechanism as is required for developingplain tapered horseshoe-blanks.

It is sometimes deemed desirable to crease a blank throughout itslength, and such a variation in the character of the creasers wouldinvolve no departure from certain portions of my invention, because thecontinuous nailcreasers, as indicated in dotted lines in Fig. 2, wouldstill have those portions thereof for the reception of nail-headsarranged in pairs, as described, even if the head prints CZ were notpresent; but if the latter were present the embodiment of this portionof my invention would only be still more apparent. The usual object ofthe crease in a horseshoe is to properly house the nail-heads; but insome varieties of shoe a continuous, wide, deep crease is provided, notonly for housing the nailheads, but also for affording a peculiarcutting or holding effect in contact with the ground, and it istherefore to be understood that my die-roll may be widely varied withrespect to the character and arrangement of the nail-creasers withoutdeparting from certain portions of my invention, in accordance withwhich the first die-roll has been produced which is capable ofdeveloping double blankbars containing tapered blanks for makingtoe-weighted shoes.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. A die-roll for forming bars containing toe-weightedhorseshoe-blanks, having adjacent to each edge of its working-face aseries of nail-score creasers arranged in pairs, and with the pairs ofcreasers in either series alternating in position with the pairs in theother series.

2. A die-roll for forming tapered horseshoe- IIO IZO

blanks in bars having a zigzag groovingtongue, which at its peripheryfor a distance equal 'to-the length of blank desired is inclined to andfro with respect to the edges of the working-face of the roll.

3. In a die-roll, a zigzag grooving-tongue which is variably beveled atits sides, substantially as described, for variably beveling one edge ofeach horseshoe-blank in a blankbar.

4t. In a die-roll for for-ming tapered horseshoe-blanks, two series ofheel-marking studs or spurs located at the edges of the workingface ofthe roll and having the spurs of either series alternating in positionwith those of the otherv series, the distance between the spurs in eachseries being equal to the length of blank desired.

5. A die-roll t'or forming bars containing toe-weightedhorseshoe-blanks, having the two series of nail-creasers arranged inpairs, the pairs in one series alternating in position with those of theother series, and also having a zigzag grooving-tongue located betweenthe two series of creasers. l

6. A die-roll for forming bars containing toe-weighted horseshoe-blanks,having a zigzag grooving-tongue located between the edges of theworking-face of the roll, and two series of heel-marking studs or spurslocated at the edges of said face, the studs in one series alternatingin position with those in the other series for deiining the length ofthe blanks.

7. A die-roll having between the edges of its working-face a zigzaggrooving-tongue, two series ot' nail-creasers, and two series ofheel-marking studs or spurs.

S. A die-roll having a zigzag groovingtongue which at its peripheryinclines to and fro once within the length of a horseshoeblank, incombination with a grooved co-operating roll.

9. A die-roll having a zigzag groovingtongue and two series ofnail-creasers arranged in pairs, the pairs in one series alternating inposition with those in the other se.- ries, in combination with agrooved co-operating roll, substantially as described.

10. In combination with a grooved roll, a die-roll co-operatingtherewith, provided with a zigzag grooving-tongue, two series ofnailcreasers, and two series of heelmarking studs, substantially asdescribed. v

CHARLES HENRY PERKINS.

Witnesses:

R. W. CoMsrooK, G. L. BOWEN.

